Expedition Explorer - Republic of the Marshall Islands 2023
  • All
  • Fish Surveys
  • Benthic Surveys
  • eDNA
  • Bruvs
  • Pelagics
  • Dropcams
  • Sub
  • Birds
  • Vegetation
  • Traverses
  • Plastics
  • Turtles
Number of workstations in each island
Bikar Bikini Bokak Rongerik Total
Benthic BRUVS 16 18 24 11 69
Benthic survey 11 16 16 13 56
Deep sea cameras 10 4 12 9 35
Environmental DNA 6 10 8 6 30
Fish surveys 15 16 16 13 60
Pelagic BRUVS 7 9 8 6 30
Seabird survey 26 32 27 28 113
Submersible survey 5 2 3 3 13
Turtle nest survey 6 0 0 9 15
Vegetation survey 6 0 6 4 16
Microplastics 0 4 7 6 17
Traverse 0 11 0 4 15
sum 108 122 127 112 469

Nautical miles traveled

1917

Hours underwater

200

Data collected

18 Tb

  • Bikar
  • Bokak
  • Bikini
  • Rongerik
Reef fish with largest contribution to total biomass (g/m2)
taxon_valid_name frq ind_m2 gr_m2
Requiem Carcharhinus amblyrhynchos 22.222 0.001 52.549
Parrotfish Chlorurus microrhinos 77.778 0.013 10.765
Barracuda Sphyraena forsteri 3.704 0.006 9.234
Wrasse Cheilinus undulatus 48.148 0.003 8.502
Anthias Pseudanthias pascalus 51.852 1.352 8.425
Emperor Monotaxis grandoculis 25.926 0.007 8.142
Snapper Lutjanus bohar 51.852 0.005 6.395
Snapper Macolor macularis 29.630 0.003 5.791
Grouper Plectropomus laevis 22.222 0.001 5.272
Snapper Lutjanus gibbus 29.630 0.009 5.052
Reef fish with largest contribution to total biomass (g/m2)
taxon_valid_name frq ind_m2 gr_m2
Requiem Carcharhinus amblyrhynchos 46.429 0.004 112.012
Requiem Triaenodon obesus 32.143 0.002 31.735
Parrotfish Scarus ghobban 39.286 0.027 24.039
Wrasse Cheilinus undulatus 35.714 0.003 21.556
Surgeonfish Naso lituratus 71.429 0.021 16.905
Butterflyfish Hemitaurichthys thompsoni 53.571 0.154 14.434
Emperor Monotaxis grandoculis 32.143 0.008 12.929
Snapper Macolor niger 21.429 0.008 10.340
Parrotfish Chlorurus microrhinos 46.429 0.009 9.877
Rabbitfish Siganus argenteus 28.571 0.014 9.262
Reef fish with largest contribution to total biomass (g/m2)
taxon_valid_name frq ind_m2 gr_m2
Requiem Carcharhinus amblyrhynchos 57.143 0.005 140.616
Fusilier Pterocaesio tile 39.286 0.680 67.629
Requiem Triaenodon obesus 21.429 0.001 36.953
Snapper Macolor niger 21.429 0.011 18.913
Fusilier Caesio teres 21.429 0.080 14.520
Snapper Lutjanus bohar 75.000 0.016 14.154
Surgeonfish Naso hexacanthus 28.571 0.011 13.225
Snapper Lutjanus gibbus 21.429 0.021 11.955
Parrotfish Chlorurus microrhinos 50.000 0.011 9.935
Snapper Macolor macularis 46.429 0.007 8.480
Reef fish with largest contribution to total biomass (g/m2)
taxon_valid_name frq ind_m2 gr_m2
Requiem Carcharhinus amblyrhynchos 47.826 0.005 147.874
Fusilier Pterocaesio tile 8.696 0.148 13.486
Surgeonfish Naso hexacanthus 34.783 0.012 12.317
Requiem Triaenodon obesus 13.043 0.001 12.214
Requiem Carcharhinus albimarginatus 4.348 0.000 12.145
Parrotfish Chlorurus microrhinos 47.826 0.011 7.167
Wrasse Cirrhilabrus luteovittatus 8.696 0.318 6.786
Snapper Lutjanus gibbus 17.391 0.013 6.195
Snapper Lutjanus bohar 43.478 0.004 4.012
Fusilier Caesio teres 4.348 0.011 3.662
  • Bikar
  • Bokak
  • Bikini
  • Rongerik
Number of benthos surveys by island, habitat, and exposure
Bikar Bikini Bokak Rongerik
Lagoon
Patchreef 2 1 4 3
Backreef NA 4 NA NA
Leeward
Forereef 6 8 6 7
Windward
Forereef 3 3 6 3
Benthos survey locations
  • Bikar
  • Bokak
  • Bikini
  • Rongerik
Water filtered (liters) for eDNA extraction in each island
Bottom Surface
Bikar 36 36
Bikini 58 42
Bokak 48 48
Rongerik 36 36
  • Bikar
  • Bokak
  • Bikini
  • Rongerik
Number of benthic BRUVS deployed in each island
depth_range n_deployments
Bikar 14-39 16
Bikini 11-44 18
Bokak 6-47 24
Rongerik 10-32 11
  • Bikar
  • Bokak
  • Bikini
  • Rongerik
  • Bikar
  • Bokak
  • Bikini
  • Rongerik
Number of deep sea cameras deployed in each island by depth strata
Bikar Bikini Bokak Rongerik
0 - 200 m 1 NA NA NA
200 - 500 m 2 NA 1 1
500 - 1,000 m 1 2 3 5
1,000 - 2,500 m 6 2 8 3
  • Bikar
  • Bokak
  • Bikini
  • Rongerik
Number of submersible surveys in each island
n_deployments min_depth max_depth
Bikar 5 180 275
Bikini 2 50 250
Bokak 3 130 250
Rongerik 3 250 263
  • Bikar
  • Bokak
  • Bikini
  • Rongerik
Number of bird surveys in each island
Land Sea
Bikar 8 18
Bikini 14 19
Bokak 8 19
Majuro Atoll NA 2
Rongerik 14 14
Transit NA 2
Transit to Utirik NA 2
Utirik 2 1
  • Bikar
  • Bokak
  • Rongerik
Number of vegetation surveys per island
Flora relative abundance Pisonia forest density
Bikar 3 3
Bokak 6 NA
Rongerik 1 3
  • Bikini
  • Rongerik
Number of traverses and distance covered (m2) per island
n_surveys cum_dist_m
Bikini 11 6060.582
Rongerik 4 1117.930
  • Bokak
    Number of turle surveys per island
    sublocation n_surveys
    Bikar Bikar 5
    Bikar Jabwelo 1
    Rongerik Bock 7
    Rongerik N Traverse Is 1
    Rongerik Rongerik 1

    This dashboard displays metadata for:

    Country Republic of the Marshall Island
    Year September, 2023
    Vessel R/V Argo
    Disclaimer

    This is a test dashboard.